Fidetron uses subcontracting of long-term reliable impregnation plants in the EU. The impregnation may be carried out with creosote or water soluable copper based preservatives such as Wolmanit CX-8 and Tanalith. Treated utility poles have a long service life.
Full sapwood penetration and required net retention are not compromised even during the winter time. This is due to the pre-heating of the poles before impregnation or due to a favourable geographical location of the plant.